773 Area Code Prefixes Directory

If you know the complete number you’re looking up, please use the Phone Number Search above. Or to explore prefixes in different coverage areas, please use the tables below.

Ameritech Illinois
Carrier

Coverage Area
Counties: Cook,
Cities: Chicago, Summit, Cicero, Evanston, Park Ridge, Schiller Park, Elk Grove Village, River Grove, Des Plaines

Level 3 Communications
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Bandwidth.com Clec
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Xo Illinois
Carrier

Coverage Area
Counties: , Cook
Cities: Wood Dale, Chicago

Indiana Paging Ntwk
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Teleport Communications America
Carrier

Coverage Area
Counties: Cook,
Cities: Chicago, Oak Brook

AT&T; Local
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Broadwing Communications
Carrier

Coverage Area
Counties: Cook,
Cities: Chicago, Arlington Heights

First Communications LLC
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Paetec Communications
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

American Messaging (am)
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Mci Worldcom Communications
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Ymax Communications Corp.
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Comcast Phone Of Illinois DBA Comco
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Cimco Communications
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Rcn Telecom Services Of Illinois
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Neutral Tandem-illinois
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Global Crossing Local Services-il
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Sigecom
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

Peerless Network Of Illinois
Carrier

Coverage Area
Counties: Cook
Cities: Chicago

The 773 area code is located in Chicago, Illinois including Summit, Cicero and was originally put into service on October 15th 1996. Find whose number this is.

Recently Reported Numbers

(773) 694-5345Unknown

If they have a contact number and have been determined scammers, why haven't they been shutdown, arrested, indicted, prosecuted and sentenced? In other words, why aren't they in prison?

(773) 839-2683Unknown

Had a nice conversastion with the gentleman......his situation brought tears to my eyes.....I told him to go join the Marine Corps and learn some discipline.

(773) 839-2683Dangerous

Claim on my ssn

(773) 839-2683Unknown

Called and said I was in big trouble and needed to call back right away . I called and had some fun with them . I demanded my refund check !!! Where is my money ???!!

(773) 839-2683Unknown

Many different people in background I put them on mute after calling 5 or so times and they laughed every time because they know they work for a scam

(773) 830-2448Unknown

They claim to be calling from TSG Surveys which is a real company but the caller ID says Chicago call.They call repeatedly and ask for me by name when a message is left. I never answer - calls go straight to voicemail.

(773) 234-0452Dangerous

Message from “Social Security” account has been tampered with. Needed to call back immediately. Filthy rotten scumbags.

(773) 570-6788Unknown

This number keeps calling. I don't answer unfamiliar numbers.

(773) 812-8811Unknown

Got a call from this number at work.

(773) 687-8524Unknown

Keep calling my number and not leaving a message.

Recently Searched Numbers

No additional information reported for these searched numbers. Received a call from any phone number listed below? Please consider helping the community by reporting your experience.

773-297-4621
Report
Sprint Spectrum L.p.
773-929-8595
Report
Ameritech Illinois
773-928-1084
Report
Ameritech Illinois
773-579-5464
Report
Ameritech Illinois
773-835-3832
Report
Cellco Partnership DBA Verizon Wireless
773-844-4900
Report
New Cingular Wireless PCS
773-195-3369
Report
UNKNOWN
773-151-5436
Report
UNKNOWN
773-337-1730
Report
Allegiance Telecom
773-364-1639
Report
Ovation Communications Of Illinois
773-875-1517
Report
T-mobile Usa
773-594-8773
Report
Ameritech Illinois
773-431-2151
Report
Cricket Communications
773-511-3636
Report
UNKNOWN
773-741-6083
Report
Ameritech Illinois
773-423-2842
Report
Allegiance Telecom
773-932-7261
Report
Global Crossing Local Services-il
773-146-9555
Report
UNKNOWN
773-636-4690
Report
Cellco Partnership DBA Verizon Wireless

Most searched numbers

Cell
All TimeThis Month
773-900-8918First seen 2014-04-08773-642-9027First seen 2014-12-01
773-837-6867First seen 2020-03-19773-479-8584First seen 2018-12-17
773-100-5926First seen 2019-07-09773-113-7602First seen 2016-02-20
773-853-1054First seen 2015-01-28773-834-9313First seen 2019-05-10
773-662-3212First seen 2014-01-17773-783-5254First seen 2014-11-24
Landline
All TimeThis Month
773-489-6500First seen 2010-03-31773-450-9944First seen 2010-06-29
773-666-7529First seen 2012-10-14773-147-8359First seen 2010-01-23
773-480-6001First seen 2019-04-19773-118-6850First seen 2013-04-23
773-413-9932First seen 2014-07-19773-926-2624First seen 2017-11-29
773-527-6512First seen 2014-07-21773-503-2355First seen 2010-08-18

Cities With coverage

CITY LIST
Arlington Heights
Bensenville
Chicago
Cicero
Des Plaines
Elk Grove Village
Evanston
Oak Brook
Park Ridge
River Grove
Schiller Park
Summit
Wood Dale